Display your quarter collection in this educational Collector Map. Openings for all 56 National Park quarters. The National Park Quarters Coin Act of 2008 requires quarters, beginning in 2010, to have designs on the reverse depicting one national site in each state, the District of Columbia, and the five territories of the United States. Fifty-six (56) different designs will complete the program from 2010 through 2021. Color. Cover image.